I had some suspension repairs done on my truck recently and I told the shop I thought my tailpipe was loose and to fix that too. It turns out the muffler is starting to go (rusting at the pipe connections allowing the play I noticed). Anyway they tacked it as a temporary remedy but I'm going to need a new muffler sooner rather than later. This got me thinking when I was checking my bills for the warranty - how long should a muffler typically last? It seems a lot of mufflers are 'guaranteed' for as long as you own the vehicle but the conditions for 'free' replacement involve returning to the original point of sale/installation - something that for me is just not economical considering how cheap said replacement muffler can be acquired over the internet. Plus I still have to pay the labor. Anyway, I live in an area that responds to winter by salting the bejeesus out of the roads and I've got just over nine years and 66K miles on this one so I'm guessing that's above average in terms of life?